<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
        <link rel="stylesheet" href="../script/bootstrap-3.3.7.min.css">
            <style type="text/css">
            button:hover{
                color: red;
                font-size: 1.5em;
            }
            p{
                margin: 15px;
            }
            </style>
</head>
<body>

<div class="container">
    <div class="row">
        <div class="col-md-4">
            <button >测试按钮</button>
        </div>
    </div>
    <p></p>
    <a href="http://www.w3school.com.cn/css/css_link.asp">W3school</a>
    <p></p>
    <img src="img/action.JPG">
</div>


</body>
</html>